Hello Neil
The above SAP note also mentions the error "OPCODE_WP_DETAIL" so the note looks appropriate to the issue you are facing. Also be aware that kernel 720 has replaced older versions of the kernel.
1629598 - SAP Kernel 720 will replace older kernel versions
My suggestion would be to update the kernel patch level to the latest vel of 701 or to 720 release.
Regards
RB